Acratocnus simorhynchus Rega, McFarlane, Lundberg & Christenson, 2002:14

Hispaniolan snub-nosed sloth, Dominican flat-nosed sloth



Taxonomy & Nomenclature



Conservation Status


Last record: c. 19,500 BC



Dominican Republic, Hispaniola


Biology & Ecology




Holotype: ALF 7194

Type locality: "Cueva del Perezoso, Jaragua National Park, Pedernales Province, Dominican Republic (UTM 88498N 9938E)"






Original scientific description:

Elizabeth Rega, Donald A. McFarlane, Joyce Lundberg & Keith Christenson. (2002). A new megalonychid sloth from the late Wisconsinan of the Dominican Republic. Caribbean Journal of Science 38(1-2): 11-19.


Other references:

Gaudin, T. (2004). Phylogenetic relationships among sloths (Mammalia, Xenarthra, Tardigrada): the craniodental evidence. Zoological Journal of the Linnean Society 140, 255-305.

Turvey, Samuel T. (2009). Holocene mammal extinctions, pp. 41-61. In: Turvey, Samuel T. (ed.). Holocene Extinctions. Oxford, UK & New York, USA: Oxford University Press. xii + 352 pp.

Turvey, Samuel T. and Fritz, Susanne A. (2011). The ghosts of mammals past: biological and geographical patterns of global mammalian extinction across the Holocene. Philosophical Transactions of the Royal Society B 366(1577): 2564-2576. [Supplementary Information]

Upham, Nathan S. (2017). Past and present of insular Caribbean mammals: understanding Holocene extinctions to inform modern biodiversity conservation. Journal of Mammalogy 98(4): 913-917.

White, J.L. & MacPhee, R.D.E. 2001 The sloths of the West Indies: a systematic and phylogenetic review. In Biogeography of the West Indies: patterns and perspectives (ed. C.A. Woods & F.E. Sergile), pp. 201-236. Boca Raton, FL: CRC Press.


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